SEOUL, Oct. 19 (Yonhap) -- Two dealers of fishery products have been arrested on charges of selling Chinese octopuses as local catch, a court said Tuesday, one month after the Seoul government detected dangerous levels of metal in a sample of octopus heads the two men sold.

Last week's arrests came after the Seoul Metropolitan Government said it found harmful amounts of the heavy metal cadmium in the heads of the invertebrates sold at a local supermarket.